/Engine/Source/Runtime/MovieScene/Public/Evaluation/Blending/MovieSceneInitialValueStore.h
Under some circumstances, the object may already be animated (for instance, after something has animated the object, but didn't restore state)
A valid pre animated token that will restore this object back to its current state
virtual IMovieScenePreAnimatedTokenPtr CacheExistingState ( [UObject](API\Runtime\CoreUObject\UObject\UObject) & Object ) const